Photographed by Nicky Butler as part of the Derwent Valley Bio-blitz
No interactions present.
British Mignonette is Reseda lutea which seems more likely. A synonym for the Sesamoides is Reseda phyteuma which is Rampion Mignonette.
Lat/Lng: 54.9334682, -1.7205151
OS grid ref: NZ180599
Growing on Nine Arches Viaduct